scienceresourcepackage - 05. CDs, DVDs, videos, music and description

CDs, DVDs, videos, music and description

1. Mysterious Mixture - Liquid rapidly changes colours: http://www.youtube.com/watch?v=Ch93AKJm9os

This is also known as the Briggs-Rauscher Reaction (an oscillating reaction). It is a mixture of different liquids and the mixture, when oscillated, continuously changes colours rapidly from blue to clear to orange-yellow, and back to blue, etc.

2. Gummy Bear dies a fiery death in Potassium chlorate: http://www.youtube.com/watch?v=txkRCIPSsjM

This is really cool! And will definitely get students engaged and attentive. The Gummy bear, when put in potassium chlorate, creates high powered sparks - almost like fireworks! Really cool!

Experimenters add a catalyst to a mixture of concentrated hydrogen peroxide and liquid soap, resulting in a reaction creating foam --> Hydrogen peroxide breaks down into oxygen and water. There's a lot of oxygen trapped in peroxide, so this rapid decomposition results in lots of oxygen that needs to quickly push out of the container. As the peroxide breaks down, the soap that was mixed in will also combine with the water (from the break down process), and turn into foam. The oxygen gushing out is what makes the soap bubbles move.
Really cool and fun to do -- a bit messy though!

4. Displacement Reaction - Magnesium & Silver Nitrate: http://www.youtube.com/watch?v=qMG53X2QmAQ&feature=fvst

A single drop of water added to a mixture of Magnesium and silver nitrate creates a bright spark and explosion! Really fun!

Add water to a mixture of zinc and Iodine, creates an explosion inside the flask.
Pretty fun!